#356F91
Closest named color: Muted Blue (#3B719F). oklch(51.8% 0.081 236.9), rgb(53, 111, 145).
Aa
White text reads best on this color (5.47:1).
About this color
#356F91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.081 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.024 away. White text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #356F91 |
| RGB | rgb(53, 111, 145) |
| HSL | hsl(202, 46%, 39%) |
| OKLCH | oklch(51.8% 0.081 236.9) |
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 #356F91 | 5.47:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #356F91 | 3.83:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #356F91 text on white | 5.47:1 | AA | Lc 77.1 | Fine for body text |
| #356F91 text on black | 3.83:1 | AA large text | Lc -24.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#AAC5D7
oklch(80.9% 0.039 237.2)
-
Step 400
400
#7BA7C3
oklch(70.7% 0.063 236.7)
-
Step 500
500
#5891B4
oklch(63.1% 0.08 236.9)
-
Step 600
600
#3B7BA0
oklch(55.7% 0.087 236.6)
-
Step 700
700 (this color)
#356F91
oklch(51.8% 0.081 236.9)
-
Step 800
800
#26546F
oklch(42.6% 0.067 237.1)
-
Step 900
900
#24465A
oklch(37.8% 0.052 236.3)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#356F91 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) | #5F6E93 | 0.048 |
| Deuteranopia (no green cones) | #526590 | 0.040 |
| Tritanopia (no blue cones) | #00787A | 0.059 |
| Achromatopsia (no color) | #696969 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #356F91
#356F91
oklch(51.8% 0.081 236.9)
- #8C5C37
#8C5C37
oklch(51.9% 0.082 57.3)
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 #356F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.024
- Sea Blue #047495 ΔE 0.025
- Ocean Blue #03719C ΔE 0.027
- Metallic Blue #4F738E ΔE 0.031
- Dull Blue #49759C ΔE 0.032
- Denim #3B638C ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.038
- Ocean #017B92 ΔE 0.039
Use #356F91 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.