#31ABBF
Closest named color: Turquoise Blue (#06B1C4). oklch(68.5% 0.107 211.1), rgb(49, 171, 191).
Aa
Black text reads best on this color (7.70:1).
About this color
#31ABBF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.107 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.018 away. Black text reads best on it, at 7.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #31ABBF |
| RGB | rgb(49, 171, 191) |
| HSL | hsl(188, 59%, 47%) |
| OKLCH | oklch(68.5% 0.107 211.1) |
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 #31ABBF | 2.72:1 | Fails | Lc -57.6 | Large or bold text, headings |
| Black text on #31ABBF | 7.70:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #31ABBF text on white | 2.72:1 | Fails | Lc 52.4 | Large or bold text, headings |
| #31ABBF text on black | 7.70:1 | AAA | Lc -49.5 | 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
#EFF7F9
oklch(97.1% 0.009 214.3)
-
Step 100
100
#DCEEF1
oklch(93.7% 0.019 208.8)
-
Step 200
200
#BEE0E7
oklch(88.4% 0.037 211.5)
-
Step 300
300
#8DCDD9
oklch(80.9% 0.067 210.5)
-
Step 400
400 (this color)
#31ABBF
oklch(68.5% 0.107 211.1)
-
Step 500
500
#009BAF
oklch(63.2% 0.11 210.8)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#31ABBF 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) | #9BA5C0 | 0.100 |
| Deuteranopia (no green cones) | #8796BF | 0.091 |
| Tritanopia (no blue cones) | #00B3B1 | 0.038 |
| Achromatopsia (no color) | #9D9D9D | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31ABBF
#31ABBF
oklch(68.5% 0.107 211.1)
- #D38071
#D38071
oklch(68.5% 0.106 31)
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 #31ABBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.018
- Light Sea Green #20B2AA ΔE 0.044
- Cadet Blue #5F9EA0 ΔE 0.053
- Greyblue #77A1B5 ΔE 0.057
- Topaz #13BBAF ΔE 0.059
- Dull Teal #5F9E8F ΔE 0.070
- Bluegrey #85A3B2 ΔE 0.071
- Sea #3C9992 ΔE 0.072
Use #31ABBF 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.