#C5EFFF
Closest named color: Diamond (#B9F2FF). oklch(92.8% 0.049 223), rgb(197, 239, 255).
Aa
Black text reads best on this color (17.16:1).
About this color
#C5EFFF is a very light, muted teal or cyan. In OKLCH its lightness is 93%, its chroma 0.049 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.015 away. Black text reads best on it, at 17.16:1.
| Hue family | Teals and cyans |
| Lightness | very light (93%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 17.16:1 |
| White text | 1.22:1 |
Values
| HEX | #C5EFFF |
| RGB | rgb(197, 239, 255) |
| HSL | hsl(197, 100%, 89%) |
| OKLCH | oklch(92.8% 0.049 223) |
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 #C5EFFF | 1.22:1 | Fails | Lc -12.8 | Not readable |
| Black text on #C5EFFF | 17.16:1 | AAA | Lc 92.6 | Preferred for body text |
| #C5EFFF text on white | 1.22:1 | Fails | Lc 11.0 | Not readable |
| #C5EFFF text on black | 17.16:1 | AAA | Lc -93.1 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100 (this color)
#C5EFFF
oklch(92.8% 0.049 223)
-
Step 200
200
#C1DFEA
oklch(88.5% 0.035 221.9)
-
Step 300
300
#94CADE
oklch(80.8% 0.063 222.8)
-
Step 400
400
#50AECE
oklch(70.7% 0.1 223.4)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#C5EFFF 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) | #E6ECFF | 0.041 |
| Deuteranopia (no green cones) | #DDE5FF | 0.037 |
| Tritanopia (no blue cones) | #B4F4F4 | 0.030 |
| Achromatopsia (no color) | #E8E8E8 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5EFFF
#C5EFFF
oklch(92.8% 0.049 223)
- #FFDFD3
#FFDFD3
oklch(92.7% 0.039 41.7)
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 #C5EFFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.015
- Pale Sky Blue #BDF6FE ΔE 0.020
- Pale Turquoise #AFEEEE ΔE 0.036
- Duck Egg Blue #C3FBF4 ΔE 0.040
- Pale Blue #D0FEFE ΔE 0.044
- Lavender #E6E6FA ΔE 0.044
- Light Light Blue #CAFFFB ΔE 0.046
- Pale Cyan #B7FFFA ΔE 0.046
Use #C5EFFF 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.