#737CB8
Closest named color: Faded Blue (#658CBB). oklch(60.4% 0.092 276.8), rgb(115, 124, 184).
Aa
Black text reads best on this color (5.30:1).
About this color
#737CB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.092 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.045 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #737CB8 |
| RGB | rgb(115, 124, 184) |
| HSL | hsl(232, 33%, 59%) |
| OKLCH | oklch(60.4% 0.092 276.8) |
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 #737CB8 | 3.95:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #737CB8 | 5.30:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #737CB8 text on white | 3.95:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #737CB8 text on black | 5.30:1 | AA | Lc -34.8 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B9BFDE
oklch(81% 0.044 276.7)
-
Step 400
400
#959DCE
oklch(70.7% 0.072 277.2)
-
Step 500
500 (this color)
#737CB8
oklch(60.4% 0.092 276.8)
-
Step 600
600
#646DAD
oklch(55.5% 0.1 276.6)
-
Step 700
700
#535B95
oklch(49.1% 0.093 276.4)
-
Step 800
800
#444B79
oklch(42.8% 0.077 276.1)
-
Step 900
900
#393E61
oklch(37.6% 0.06 276.9)
-
Step 950
950
#222539
oklch(27.1% 0.037 277)
#737CB8 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) | #6983BA | 0.021 |
| Deuteranopia (no green cones) | #647DB7 | 0.020 |
| Tritanopia (no blue cones) | #5F8892 | 0.081 |
| Achromatopsia (no color) | #808080 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737CB8
#737CB8
oklch(60.4% 0.092 276.8)
- #91813C
#91813C
oklch(60.3% 0.091 96.4)
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 #737CB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.045
- Off Blue #5684AE ΔE 0.046
- Dusty Blue #5A86AD ΔE 0.047
- Cool Blue #4984B8 ΔE 0.051
- Lavender Gray #7E7F9A ΔE 0.052
- Steel Blue #4682B4 ΔE 0.054
- Silver Lake Blue #778DA9 ΔE 0.060
- Deep Lilac #966EBD ΔE 0.063
Use #737CB8 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.