#31ACE2
Closest named color: Turquoise Blue (#06B1C4). oklch(70.2% 0.13 232.5), rgb(49, 172, 226).
Aa
Black text reads best on this color (8.12:1).
About this color
#31ACE2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.130 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.053 away. Black text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.12:1 |
| White text | 2.58:1 |
Values
| HEX | #31ACE2 |
| RGB | rgb(49, 172, 226) |
| HSL | hsl(198, 75%, 54%) |
| OKLCH | oklch(70.2% 0.13 232.5) |
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 #31ACE2 | 2.58:1 | Fails | Lc -55.2 | Large or bold text, headings |
| Black text on #31ACE2 | 8.12:1 | AAA | Lc 53.9 | Large or bold text, headings |
| #31ACE2 text on white | 2.58:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #31ACE2 text on black | 8.12:1 | AAA | Lc -51.9 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DBEDF7
oklch(93.6% 0.023 231.8)
-
Step 200
200
#BDDFF2
oklch(88.5% 0.044 232.4)
-
Step 300
300
#8ACAED
oklch(80.8% 0.082 233.1)
-
Step 400
400 (this color)
#31ACE2
oklch(70.2% 0.13 232.5)
-
Step 500
500
#0095CA
oklch(63% 0.13 232.7)
-
Step 600
600
#007EAB
oklch(55.7% 0.114 232.4)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#31ACE2 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) | #91AAE5 | 0.084 |
| Deuteranopia (no green cones) | #7A9AE1 | 0.071 |
| Tritanopia (no blue cones) | #00BABE | 0.077 |
| Achromatopsia (no color) | #A1A1A1 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31ACE2
#31ACE2
oklch(70.2% 0.13 232.5)
- #DE864C
#DE864C
oklch(70.2% 0.131 52.4)
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 #31ACE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.053
- Deep Sky Blue #00BFFF ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.070
- Cornflower Blue #6495ED ΔE 0.074
- Greyblue #77A1B5 ΔE 0.078
- Dark Sky Blue #448EE4 ΔE 0.083
- Vivid Sky Blue #4CC9F0 ΔE 0.084
- Bright Sky Blue #02CCFE ΔE 0.087
Use #31ACE2 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.