#C9ECFB
Closest named color: Diamond (#B9F2FF). oklch(92.3% 0.042 225.6), rgb(201, 236, 251).
Aa
Black text reads best on this color (16.87:1).
About this color
#C9ECFB is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.042 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.022 away. Black text reads best on it, at 16.87:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.87:1 |
| White text | 1.24:1 |
Values
| HEX | #C9ECFB |
| RGB | rgb(201, 236, 251) |
| HSL | hsl(198, 86%, 89%) |
| OKLCH | oklch(92.3% 0.042 225.6) |
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 #C9ECFB | 1.24:1 | Fails | Lc -14.0 | Not readable |
| Black text on #C9ECFB | 16.87:1 | AAA | Lc 91.5 | Preferred for body text |
| #C9ECFB text on white | 1.24:1 | Fails | Lc 12.1 | Not readable |
| #C9ECFB text on black | 16.87:1 | AAA | Lc -91.9 | 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 100.
-
Step 50
50
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100 (this color)
#C9ECFB
oklch(92.3% 0.042 225.6)
-
Step 200
200
#C5DEE8
oklch(88.5% 0.03 223.8)
-
Step 300
300
#9CC9DB
oklch(81% 0.054 224.4)
-
Step 400
400
#61ACC9
oklch(70.7% 0.086 225.2)
-
Step 500
500
#2697BC
oklch(63.2% 0.11 225.4)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005871
oklch(42.8% 0.081 225.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#072B37
oklch(27% 0.045 224.7)
#C9ECFB 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) | #E4EAFC | 0.034 |
| Deuteranopia (no green cones) | #DCE4FB | 0.030 |
| Tritanopia (no blue cones) | #BBF1F1 | 0.028 |
| Achromatopsia (no color) | #E6E6E6 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9ECFB
#C9ECFB
oklch(92.3% 0.042 225.6)
- #FFDECF
#FFDECF
oklch(92.4% 0.042 45.9)
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 #C9ECFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.022
- Pale Sky Blue #BDF6FE ΔE 0.027
- Pale Turquoise #AFEEEE ΔE 0.037
- Lavender #E6E6FA ΔE 0.038
- Pale Silver #D8E2DC ΔE 0.043
- Duck Egg Blue #C3FBF4 ΔE 0.044
- Platinum #E0E1DD ΔE 0.046
- Pale Blue #D0FEFE ΔE 0.048
Use #C9ECFB 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.