#99ABCB
Closest named color: Cool Steel (#97A7B3). oklch(73.8% 0.051 261.9), rgb(153, 171, 203).
Aa
Black text reads best on this color (9.04:1).
About this color
#99ABCB is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.051 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.034 away. Black text reads best on it, at 9.04:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.04:1 |
| White text | 2.32:1 |
Values
| HEX | #99ABCB |
| RGB | rgb(153, 171, 203) |
| HSL | hsl(218, 32%, 70%) |
| OKLCH | oklch(73.8% 0.051 261.9) |
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 #99ABCB | 2.32:1 | Fails | Lc -50.7 | Large or bold text, headings |
| Black text on #99ABCB | 9.04:1 | AAA | Lc 58.2 | Large or bold text, headings |
| #99ABCB text on white | 2.32:1 | Fails | Lc 45.8 | Large or bold text, headings |
| #99ABCB text on black | 9.04:1 | AAA | Lc -56.3 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D3D9E5
oklch(88.4% 0.018 264.5)
-
Step 300
300
#B6C1D6
oklch(80.9% 0.032 263.5)
-
Step 400
400 (this color)
#99ABCB
oklch(73.8% 0.051 261.9)
-
Step 500
500
#748AB1
oklch(63.1% 0.064 261.7)
-
Step 600
600
#5D749D
oklch(55.7% 0.07 261.7)
-
Step 700
700
#4C6186
oklch(49.1% 0.065 261.4)
-
Step 800
800
#3F4F6D
oklch(42.7% 0.054 262.6)
-
Step 900
900
#354258
oklch(37.7% 0.042 260.8)
-
Step 950
950
#1F2734
oklch(27.1% 0.027 260)
#99ABCB 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) | #A1ADCD | 0.013 |
| Deuteranopia (no green cones) | #9CA8CA | 0.008 |
| Tritanopia (no blue cones) | #8CB1B5 | 0.045 |
| Achromatopsia (no color) | #AAAAAA | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ABCB
#99ABCB
oklch(73.8% 0.051 261.9)
- #BAA886
#BAA886
oklch(73.8% 0.051 83.2)
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 #99ABCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.034
- Light Grey Blue #9DBCD4 ΔE 0.046
- French Gray #ADB5BD ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.049
- Bluey Grey #89A0B0 ΔE 0.051
- Dark Gray #A9A9A9 ΔE 0.051
- Cool Grey #95A3A6 ΔE 0.053
- Light Cornflower Blue #98C1D9 ΔE 0.057
Use #99ABCB 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.