#99AECD
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.5% 0.051 258), rgb(153, 174, 205).
Aa
Black text reads best on this color (9.29:1).
About this color
#99AECD is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.051 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.038 away. Black text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.29:1 |
| White text | 2.26:1 |
Values
| HEX | #99AECD |
| RGB | rgb(153, 174, 205) |
| HSL | hsl(216, 34%, 70%) |
| OKLCH | oklch(74.5% 0.051 258) |
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 #99AECD | 2.26:1 | Fails | Lc -49.4 | Large or bold text, headings |
| Black text on #99AECD | 9.29:1 | AAA | Lc 59.4 | Large or bold text, headings |
| #99AECD text on white | 2.26:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #99AECD text on black | 9.29:1 | AAA | Lc -57.6 | 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
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B4C2D5
oklch(80.9% 0.031 256)
-
Step 400
400 (this color)
#99AECD
oklch(74.5% 0.051 258)
-
Step 500
500
#718BB1
oklch(63.1% 0.065 257.8)
-
Step 600
600
#59759D
oklch(55.7% 0.071 257.3)
-
Step 700
700
#496286
oklch(49.2% 0.065 257.5)
-
Step 800
800
#3C506D
oklch(42.7% 0.055 257.6)
-
Step 900
900
#344258
oklch(37.6% 0.042 259.3)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#99AECD 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) | #A4AFCF | 0.015 |
| Deuteranopia (no green cones) | #9EAACC | 0.012 |
| Tritanopia (no blue cones) | #8BB4B8 | 0.044 |
| Achromatopsia (no color) | #ACACAC | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AECD
#99AECD
oklch(74.5% 0.051 258)
- #BEA989
#BEA989
oklch(74.5% 0.05 78.2)
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 #99AECD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.038
- Cool Steel #97A7B3 ΔE 0.038
- French Gray #ADB5BD ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Dark Gray #A9A9A9 ΔE 0.052
- Bluegrey #85A3B2 ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.056
- Cool Grey #95A3A6 ΔE 0.057
Use #99AECD 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.