#919BB1
Closest named color: Cool Gray (#8D99AE). oklch(68.9% 0.034 266), rgb(145, 155, 177).
Aa
Black text reads best on this color (7.52:1).
About this color
#919BB1 is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.034 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.009 away. Black text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.52:1 |
| White text | 2.78:1 |
Values
| HEX | #919BB1 |
| RGB | rgb(145, 155, 177) |
| HSL | hsl(221, 17%, 63%) |
| OKLCH | oklch(68.9% 0.034 266) |
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 #919BB1 | 2.78:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #919BB1 | 7.52:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #919BB1 text on white | 2.78:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #919BB1 text on black | 7.52:1 | AAA | Lc -48.1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E1
oklch(88.5% 0.012 264.5)
-
Step 300
300
#BAC1CF
oklch(81% 0.021 264.4)
-
Step 400
400 (this color)
#919BB1
oklch(68.9% 0.034 266)
-
Step 500
500
#7D89A5
oklch(63% 0.045 266.9)
-
Step 600
600
#667390
oklch(55.6% 0.048 266)
-
Step 700
700
#55607A
oklch(49% 0.044 266.9)
-
Step 800
800
#454F64
oklch(42.7% 0.037 264.9)
-
Step 900
900
#3A4151
oklch(37.5% 0.029 266.5)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#919BB1 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) | #949CB2 | 0.005 |
| Deuteranopia (no green cones) | #9299B0 | 0.005 |
| Tritanopia (no blue cones) | #899FA2 | 0.031 |
| Achromatopsia (no color) | #9B9B9B | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #919BB1
#919BB1
oklch(68.9% 0.034 266)
- #A49A83
#A49A83
oklch(68.9% 0.035 87.3)
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 #919BB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.009
- Bluey Grey #89A0B0 ΔE 0.017
- Bluegrey #85A3B2 ΔE 0.025
- Cool Grey #95A3A6 ΔE 0.033
- Greyblue #77A1B5 ΔE 0.034
- Cool Steel #97A7B3 ΔE 0.035
- Pewter #96A8A1 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.055
Use #919BB1 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.