#CEFFF9
Closest named color: Light Light Blue (#CAFFFB). oklch(96.5% 0.05 187.2), rgb(206, 255, 249).
Aa
Black text reads best on this color (19.29:1).
About this color
#CEFFF9 is a very light, muted teal or cyan. In OKLCH its lightness is 96%, its chroma 0.050 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Light Light Blue (#CAFFFB), ΔE 0.005 away. Black text reads best on it, at 19.29:1.
| Hue family | Teals and cyans |
| Lightness | very light (96%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Light Light Blue (#CAFFFB) |
| Black text | 19.29:1 |
| White text | 1.08:1 |
Values
| HEX | #CEFFF9 |
| RGB | rgb(206, 255, 249) |
| HSL | hsl(173, 100%, 90%) |
| OKLCH | oklch(96.5% 0.05 187.2) |
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 #CEFFF9 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| Black text on #CEFFF9 | 19.29:1 | AAA | Lc 100.2 | Preferred for body text |
| #CEFFF9 text on white | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #CEFFF9 text on black | 19.29:1 | AAA | Lc -101.5 | Preferred 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 50.
-
Step 50
50 (this color)
#CEFFF9
oklch(96.5% 0.05 187.2)
-
Step 100
100
#DDEEEC
oklch(93.6% 0.018 188.4)
-
Step 200
200
#C0E1DD
oklch(88.5% 0.035 187.6)
-
Step 300
300
#90CFC8
oklch(81% 0.065 187.3)
-
Step 400
400
#42B5AC
oklch(70.6% 0.103 187.8)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#CEFFF9 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) | #FAF9F9 | 0.055 |
| Deuteranopia (no green cones) | #F0F2FA | 0.051 |
| Tritanopia (no blue cones) | #C0FFFD | 0.016 |
| Achromatopsia (no color) | #F5F5F5 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CEFFF9
#CEFFF9
oklch(96.5% 0.05 187.2)
- #FFEFF1
#FFEFF1
oklch(96.5% 0.017 8.8)
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 #CEFFF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Light Blue #CAFFFB ΔE 0.005
- Pale Blue #D0FEFE ΔE 0.009
- Ice #D6FFFA ΔE 0.010
- Really Light Blue #D4FFFF ΔE 0.011
- Eggshell Blue #C4FFF7 ΔE 0.012
- Very Pale Blue #D6FFFE ΔE 0.012
- Very Light Blue #D5FFFF ΔE 0.012
- Ice Blue #D7FFFE ΔE 0.013
Use #CEFFF9 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.