#737DA2
Closest named color: Lavender Gray (#7E7F9A). oklch(59.5% 0.058 272.8), rgb(115, 125, 162).
Aa
Black text reads best on this color (5.18:1).
About this color
#737DA2 is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.058 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.022 away. Black text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #737DA2 |
| RGB | rgb(115, 125, 162) |
| HSL | hsl(227, 20%, 54%) |
| OKLCH | oklch(59.5% 0.058 272.8) |
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 #737DA2 | 4.05:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #737DA2 | 5.18:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #737DA2 text on white | 4.05:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #737DA2 text on black | 5.18:1 | AA | Lc -33.9 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E4
oklch(88.5% 0.016 270)
-
Step 300
300
#BAC0D3
oklch(80.9% 0.028 271.8)
-
Step 400
400
#979FBE
oklch(70.7% 0.046 273.8)
-
Step 500
500 (this color)
#737DA2
oklch(59.5% 0.058 272.8)
-
Step 600
600
#677199
oklch(55.6% 0.063 273.3)
-
Step 700
700
#555F82
oklch(49.1% 0.058 271.8)
-
Step 800
800
#464D6A
oklch(42.6% 0.049 273.7)
-
Step 900
900
#3B4056
oklch(37.6% 0.038 274.5)
-
Step 950
950
#222632
oklch(27% 0.023 270.4)
#737DA2 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) | #7280A4 | 0.008 |
| Deuteranopia (no green cones) | #6E7CA1 | 0.008 |
| Tritanopia (no blue cones) | #67848A | 0.051 |
| Achromatopsia (no color) | #7E7E7E | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737DA2
#737DA2
oklch(59.5% 0.058 272.8)
- #8B7E57
#8B7E57
oklch(59.5% 0.057 91.8)
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 #737DA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.022
- Slate Gray #708090 ΔE 0.032
- Steel #738595 ΔE 0.035
- Dusty Blue #5A86AD ΔE 0.037
- Off Blue #5684AE ΔE 0.039
- Grey Blue #647D8E ΔE 0.039
- Light Slate Gray #778899 ΔE 0.039
- Steel Grey #6F828A ΔE 0.045
Use #737DA2 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.