#7B91A3
Closest named color: Blue Grey (#758DA3). oklch(64.6% 0.037 243), rgb(123, 145, 163).
Aa
Black text reads best on this color (6.42:1).
About this color
#7B91A3 is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.037 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.015 away. Black text reads best on it, at 6.42:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.42:1 |
| White text | 3.27:1 |
Values
| HEX | #7B91A3 |
| RGB | rgb(123, 145, 163) |
| HSL | hsl(207, 18%, 56%) |
| OKLCH | oklch(64.6% 0.037 243) |
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 #7B91A3 | 3.27:1 | AA large text | Lc -65.5 | Content text, not long reading |
| Black text on #7B91A3 | 6.42:1 | AA | Lc 44.0 | Non-text elements, placeholder text |
| #7B91A3 text on white | 3.27:1 | AA large text | Lc 60.0 | Content text, not long reading |
| #7B91A3 text on black | 6.42:1 | AA | Lc -41.7 | Non-text elements, placeholder 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 500.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D4DADF
oklch(88.5% 0.009 242.9)
-
Step 300
300
#B7C2CC
oklch(80.9% 0.019 245.4)
-
Step 400
400
#92A3B2
oklch(70.7% 0.029 244.8)
-
Step 500
500 (this color)
#7B91A3
oklch(64.6% 0.037 243)
-
Step 600
600
#5F7689
oklch(55.5% 0.04 243.5)
-
Step 700
700
#4F6475
oklch(49.3% 0.037 243)
-
Step 800
800
#40515F
oklch(42.6% 0.032 243.4)
-
Step 900
900
#37434E
oklch(37.7% 0.025 246.2)
-
Step 950
950
#20272D
oklch(26.8% 0.015 244.2)
#7B91A3 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) | #8A91A4 | 0.021 |
| Deuteranopia (no green cones) | #858CA3 | 0.018 |
| Tritanopia (no blue cones) | #709597 | 0.029 |
| Achromatopsia (no color) | #8E8E8E | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7B91A3
#7B91A3
oklch(64.6% 0.037 243)
- #9F8977
#9F8977
oklch(64.5% 0.037 61.4)
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 #7B91A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.015
- Silver Lake Blue #778DA9 ΔE 0.018
- Light Slate Gray #778899 ΔE 0.027
- Cool Gray #8D99AE ΔE 0.037
- Steel #738595 ΔE 0.038
- Greyblue #77A1B5 ΔE 0.045
- Bluey Grey #89A0B0 ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.048
Use #7B91A3 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.