#33A0EE
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.1% 0.15 244.8), rgb(51, 160, 238).
Aa
Black text reads best on this color (7.40:1).
About this color
#33A0EE is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.150 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.031 away. Black text reads best on it, at 7.40:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.40:1 |
| White text | 2.83:1 |
Values
| HEX | #33A0EE |
| RGB | rgb(51, 160, 238) |
| HSL | hsl(205, 85%, 57%) |
| OKLCH | oklch(68.1% 0.15 244.8) |
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 #33A0EE | 2.83:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #33A0EE | 7.40:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #33A0EE text on white | 2.83:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #33A0EE text on black | 7.40:1 | AAA | Lc -47.8 | 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
#EFF7FE
oklch(97.2% 0.013 244.3)
-
Step 100
100
#DBECFB
oklch(93.5% 0.027 244.7)
-
Step 200
200
#BDDEFA
oklch(88.6% 0.052 244)
-
Step 300
300
#8CC7F9
oklch(80.8% 0.094 244.9)
-
Step 400
400 (this color)
#33A0EE
oklch(68.1% 0.15 244.8)
-
Step 500
500
#0090E1
oklch(63.1% 0.158 244.7)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0065A1
oklch(49% 0.124 245.1)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#002945
oklch(27.1% 0.068 244.5)
#33A0EE 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) | #7CA3F1 | 0.064 |
| Deuteranopia (no green cones) | #6192ED | 0.046 |
| Tritanopia (no blue cones) | #00B3BC | 0.105 |
| Achromatopsia (no color) | #999999 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33A0EE
#33A0EE
oklch(68.1% 0.15 244.8)
- #D7820F
#D7820F
oklch(68.2% 0.15 64.8)
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 #33A0EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.031
- Cornflower Blue #6495ED ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.047
- Dodger Blue #1E90FF ΔE 0.056
- Soft Blue #6488EA ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.082
- Water Blue #0E87CC ΔE 0.083
- Faded Blue #658CBB ΔE 0.085
Use #33A0EE 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.