#99AFC8
Closest named color: Cool Steel (#97A7B3). oklch(74.6% 0.044 251.7), rgb(153, 175, 200).
Aa
Black text reads best on this color (9.32:1).
About this color
#99AFC8 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.044 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.033 away. Black text reads best on it, at 9.32:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.32:1 |
| White text | 2.25:1 |
Values
| HEX | #99AFC8 |
| RGB | rgb(153, 175, 200) |
| HSL | hsl(212, 30%, 69%) |
| OKLCH | oklch(74.6% 0.044 251.7) |
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 #99AFC8 | 2.25:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #99AFC8 | 9.32:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #99AFC8 text on white | 2.25:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #99AFC8 text on black | 9.32:1 | AAA | Lc -57.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE3
oklch(88.5% 0.015 251.2)
-
Step 300
300
#B4C2D2
oklch(80.8% 0.027 251.7)
-
Step 400
400 (this color)
#99AFC8
oklch(74.6% 0.044 251.7)
-
Step 500
500
#718CAB
oklch(63.1% 0.056 252.2)
-
Step 600
600
#597696
oklch(55.6% 0.06 251.4)
-
Step 700
700
#496380
oklch(49.1% 0.056 251.7)
-
Step 800
800
#3C5168
oklch(42.7% 0.046 251.2)
-
Step 900
900
#334355
oklch(37.7% 0.037 251.8)
-
Step 950
950
#1E2732
oklch(26.9% 0.024 253.7)
#99AFC8 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) | #A6AFC9 | 0.017 |
| Deuteranopia (no green cones) | #A1ABC7 | 0.014 |
| Tritanopia (no blue cones) | #8CB5B7 | 0.038 |
| Achromatopsia (no color) | #ADADAD | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AFC8
#99AFC8
oklch(74.6% 0.044 251.7)
- #BEA98F
#BEA98F
oklch(74.6% 0.043 73)
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 #99AFC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.033
- Light Grey Blue #9DBCD4 ΔE 0.036
- French Gray #ADB5BD ΔE 0.038
- Dark Gray #A9A9A9 ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.050
- Cool Grey #95A3A6 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.054
Use #99AFC8 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.