#33BBEF
Closest named color: Deep Sky Blue (#00BFFF). oklch(74.4% 0.134 229.2), rgb(51, 187, 239).
Aa
Black text reads best on this color (9.49:1).
About this color
#33BBEF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.134 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.024 away. Black text reads best on it, at 9.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #33BBEF |
| RGB | rgb(51, 187, 239) |
| HSL | hsl(197, 85%, 57%) |
| OKLCH | oklch(74.4% 0.134 229.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #33BBEF | 2.21:1 | Fails | Lc -47.9 | Large or bold text, headings |
| Black text on #33BBEF | 9.49:1 | AAA | Lc 60.9 | Content text, not long reading |
| #33BBEF text on white | 2.21:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #33BBEF text on black | 9.49:1 | AAA | Lc -59.1 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF7
oklch(93.5% 0.024 230.4)
-
Step 200
200
#BBE0F2
oklch(88.6% 0.046 228.9)
-
Step 300
300
#86CBEC
oklch(80.8% 0.084 229.7)
-
Step 400
400 (this color)
#33BBEF
oklch(74.4% 0.134 229.2)
-
Step 500
500
#0096C5
oklch(63% 0.125 229.4)
-
Step 600
600
#007EA6
oklch(55.5% 0.11 229.3)
-
Step 700
700
#006A8C
oklch(49% 0.097 229.1)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#33BBEF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A0B8F2 | 0.094 |
| Deuteranopia (no green cones) | #87A7EE | 0.080 |
| Tritanopia (no blue cones) | #00CACC | 0.077 |
| Achromatopsia (no color) | #AEAEAE | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33BBEF
#33BBEF
oklch(74.4% 0.134 229.2)
- #EF915B
#EF915B
oklch(74.4% 0.133 49.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #33BBEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.024
- Vivid Sky Blue #4CC9F0 ΔE 0.043
- Bright Sky Blue #02CCFE ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.067
- Turquoise Blue #06B1C4 ΔE 0.068
- Carolina Blue #8AB8FE ΔE 0.074
- Sky #82CAFC ΔE 0.077
- Dark Turquoise #00CED1 ΔE 0.079
Use #33BBEF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.