#40EEF6
Closest named color: Bright Light Blue (#26F7FD). oklch(86.8% 0.135 199.7), rgb(64, 238, 246).
Aa
Black text reads best on this color (14.77:1).
About this color
#40EEF6 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.135 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Light Blue (#26F7FD), ΔE 0.023 away. Black text reads best on it, at 14.77:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Bright Light Blue (#26F7FD) |
| Black text | 14.77:1 |
| White text | 1.42:1 |
Values
| HEX | #40EEF6 |
| RGB | rgb(64, 238, 246) |
| HSL | hsl(183, 91%, 61%) |
| OKLCH | oklch(86.8% 0.135 199.7) |
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 #40EEF6 | 1.42:1 | Fails | Lc -22.6 | Dividers and decoration only |
| Black text on #40EEF6 | 14.77:1 | AAA | Lc 83.9 | Fine for body text |
| #40EEF6 text on white | 1.42:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #40EEF6 text on black | 14.77:1 | AAA | Lc -83.6 | Fine for body text |
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 200.
-
Step 50
50
#E4FBFB
oklch(97.1% 0.024 196.8)
-
Step 100
100
#C4F5F7
oklch(93.7% 0.05 199.4)
-
Step 200
200 (this color)
#40EEF6
oklch(86.8% 0.135 199.7)
-
Step 300
300
#00DBE3
oklch(81% 0.138 199.5)
-
Step 400
400
#00B7BE
oklch(70.8% 0.12 199.7)
-
Step 500
500
#009DA3
oklch(63.2% 0.108 199.6)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#40EEF6 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) | #DCE3F7 | 0.138 |
| Deuteranopia (no green cones) | #C3D0F7 | 0.129 |
| Tritanopia (no blue cones) | #00F7F0 | 0.030 |
| Achromatopsia (no color) | #D8D8D8 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40EEF6
#40EEF6
oklch(86.8% 0.135 199.7)
- #FFC2C1
#FFC2C1
oklch(86.9% 0.07 19.7)
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 #40EEF6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Light Blue #26F7FD ΔE 0.023
- Robin's Egg #6DEDFD ΔE 0.028
- Bright Cyan #41FDFE ΔE 0.040
- Bright Aqua #0BF9EA ΔE 0.040
- Bright Turquoise #0FFEF9 ΔE 0.043
- Cyan #00FFFF ΔE 0.044
- Robin Egg Blue #8AF1FE ΔE 0.051
- Turquoise #40E0D0 ΔE 0.057
Use #40EEF6 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.