#33BBDD
Closest named color: Turquoise Blue (#06B1C4). oklch(73.6% 0.121 219), rgb(51, 187, 221).
Aa
Black text reads best on this color (9.29:1).
About this color
#33BBDD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.121 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.046 away. Black text reads best on it, at 9.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.29:1 |
| White text | 2.25:1 |
Values
| HEX | #33BBDD |
| RGB | rgb(51, 187, 221) |
| HSL | hsl(192, 71%, 53%) |
| OKLCH | oklch(73.6% 0.121 219) |
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 #33BBDD | 2.25:1 | Fails | Lc -48.9 | Large or bold text, headings |
| Black text on #33BBDD | 9.29:1 | AAA | Lc 59.8 | Large or bold text, headings |
| #33BBDD text on white | 2.25:1 | Fails | Lc 44.1 | Non-text elements, placeholder text |
| #33BBDD text on black | 9.29:1 | AAA | Lc -58.0 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DBEEF4
oklch(93.7% 0.022 218.6)
-
Step 200
200
#BBE0EC
oklch(88.4% 0.042 219.4)
-
Step 300
300
#87CDE2
oklch(80.9% 0.076 218.8)
-
Step 400
400 (this color)
#33BBDD
oklch(73.6% 0.121 219)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#33BBDD 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) | #A6B6DF | 0.102 |
| Deuteranopia (no green cones) | #8FA5DD | 0.092 |
| Tritanopia (no blue cones) | #00C6C6 | 0.054 |
| Achromatopsia (no color) | #ACACAC | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33BBDD
#33BBDD
oklch(73.6% 0.121 219)
- #EA8E6F
#EA8E6F
oklch(73.6% 0.121 39.3)
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 #33BBDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.047
- Deep Sky Blue #00BFFF ΔE 0.048
- Bright Sky Blue #02CCFE ΔE 0.057
- Dark Turquoise #00CED1 ΔE 0.062
- Topaz #13BBAF ΔE 0.071
- Lightblue #7BC8F6 ΔE 0.075
- Light Sea Green #20B2AA ΔE 0.076
Use #33BBDD 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.