#99ECF2
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.2% 0.081 201.6), rgb(153, 236, 242).
Aa
Black text reads best on this color (15.63:1).
About this color
#99ECF2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.081 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.010 away. Black text reads best on it, at 15.63:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.63:1 |
| White text | 1.34:1 |
Values
| HEX | #99ECF2 |
| RGB | rgb(153, 236, 242) |
| HSL | hsl(184, 77%, 77%) |
| OKLCH | oklch(89.2% 0.081 201.6) |
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 #99ECF2 | 1.34:1 | Fails | Lc -19.2 | Dividers and decoration only |
| Black text on #99ECF2 | 15.63:1 | AAA | Lc 86.9 | Fine for body text |
| #99ECF2 text on white | 1.34:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #99ECF2 text on black | 15.63:1 | AAA | Lc -86.9 | 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
#EBF8F9
oklch(97% 0.014 202.5)
-
Step 100
100
#D4F0F2
oklch(93.5% 0.029 201.9)
-
Step 200
200 (this color)
#99ECF2
oklch(89.2% 0.081 201.6)
-
Step 300
300
#62D5DD
oklch(81% 0.104 201.5)
-
Step 400
400
#00B6C0
oklch(70.7% 0.12 201.8)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#99ECF2 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) | #E1E5F3 | 0.083 |
| Deuteranopia (no green cones) | #D1D9F3 | 0.077 |
| Tritanopia (no blue cones) | #75F2EE | 0.035 |
| Achromatopsia (no color) | #DEDEDE | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ECF2
#99ECF2
oklch(89.2% 0.081 201.6)
- #FFCDCB
#FFCDCB
oklch(89.1% 0.057 21)
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 #99ECF2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.010
- Robin Egg Blue #8AF1FE ΔE 0.020
- Pale Turquoise #AFEEEE ΔE 0.024
- Powder Blue #B0E0E6 ΔE 0.035
- Robin's Egg #6DEDFD ΔE 0.037
- Diamond #B9F2FF ΔE 0.043
- Celeste #A8DADC ΔE 0.048
- Pale Sky Blue #BDF6FE ΔE 0.051
Use #99ECF2 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.