#C5F9FF
Closest named color: Pale Sky Blue (#BDF6FE). oklch(94.8% 0.053 205), rgb(197, 249, 255).
Aa
Black text reads best on this color (18.36:1).
About this color
#C5F9FF is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.053 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Sky Blue (#BDF6FE), ΔE 0.013 away. Black text reads best on it, at 18.36:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Pale Sky Blue (#BDF6FE) |
| Black text | 18.36:1 |
| White text | 1.14:1 |
Values
| HEX | #C5F9FF |
| RGB | rgb(197, 249, 255) |
| HSL | hsl(186, 100%, 89%) |
| OKLCH | oklch(94.8% 0.053 205) |
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 #C5F9FF | 1.14:1 | Fails | Lc -7.8 | Not readable |
| Black text on #C5F9FF | 18.36:1 | AAA | Lc 96.9 | Preferred for body text |
| #C5F9FF text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #C5F9FF text on black | 18.36:1 | AAA | Lc -97.9 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100 (this color)
#C5F9FF
oklch(94.8% 0.053 205)
-
Step 200
200
#BDE1E5
oklch(88.5% 0.038 204.7)
-
Step 300
300
#8BCED6
oklch(80.9% 0.068 205.4)
-
Step 400
400
#31B4C1
oklch(70.7% 0.11 205)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#C5F9FF 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) | #F1F4FF | 0.054 |
| Deuteranopia (no green cones) | #E6ECFF | 0.049 |
| Tritanopia (no blue cones) | #B3FDFB | 0.023 |
| Achromatopsia (no color) | #F0F0F0 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5F9FF
#C5F9FF
oklch(94.8% 0.053 205)
- #FFE8E5
#FFE8E5
oklch(94.9% 0.026 26.5)
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 #C5F9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Sky Blue #BDF6FE ΔE 0.013
- Duck Egg Blue #C3FBF4 ΔE 0.018
- Pale Blue #D0FEFE ΔE 0.020
- Light Light Blue #CAFFFB ΔE 0.020
- Eggshell Blue #C4FFF7 ΔE 0.022
- Pale Cyan #B7FFFA ΔE 0.024
- Diamond #B9F2FF ΔE 0.024
- Really Light Blue #D4FFFF ΔE 0.025
Use #C5F9FF 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.