#99ECFA
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.5% 0.083 209.2), rgb(153, 236, 250).
Aa
Black text reads best on this color (15.73:1).
About this color
#99ECFA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.083 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.009 away. Black text reads best on it, at 15.73:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.73:1 |
| White text | 1.33:1 |
Values
| HEX | #99ECFA |
| RGB | rgb(153, 236, 250) |
| HSL | hsl(189, 91%, 79%) |
| OKLCH | oklch(89.5% 0.083 209.2) |
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 #99ECFA | 1.33:1 | Fails | Lc -18.8 | Dividers and decoration only |
| Black text on #99ECFA | 15.73:1 | AAA | Lc 87.3 | Fine for body text |
| #99ECFA text on white | 1.33:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #99ECFA text on black | 15.73:1 | AAA | Lc -87.3 | 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
#EBF8FB
oklch(97% 0.014 213.1)
-
Step 100
100
#D3F0F5
oklch(93.6% 0.031 209.1)
-
Step 200
200 (this color)
#99ECFA
oklch(89.5% 0.083 209.2)
-
Step 300
300
#61D4E6
oklch(81% 0.106 209.1)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#99ECFA 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) | #DFE6FB | 0.080 |
| Deuteranopia (no green cones) | #CFDAFA | 0.073 |
| Tritanopia (no blue cones) | #71F3F0 | 0.042 |
| Achromatopsia (no color) | #DFDFDF | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ECFA
#99ECFA
oklch(89.5% 0.083 209.2)
- #FFCFC7
#FFCFC7
oklch(89.4% 0.056 29.2)
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 #99ECFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.009
- Robin Egg Blue #8AF1FE ΔE 0.017
- Pale Turquoise #AFEEEE ΔE 0.028
- Robin's Egg #6DEDFD ΔE 0.036
- Powder Blue #B0E0E6 ΔE 0.038
- Diamond #B9F2FF ΔE 0.039
- Pale Sky Blue #BDF6FE ΔE 0.049
- Celeste #A8DADC ΔE 0.052
Use #99ECFA 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.