#33759D
Closest named color: Muted Blue (#3B719F). oklch(53.8% 0.092 238.4), rgb(51, 117, 157).
Aa
White text reads best on this color (5.03:1).
About this color
#33759D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.092 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.014 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #33759D |
| RGB | rgb(51, 117, 157) |
| HSL | hsl(203, 51%, 41%) |
| OKLCH | oklch(53.8% 0.092 238.4) |
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 #33759D | 5.03:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #33759D | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #33759D text on white | 5.03:1 | AA | Lc 74.5 | Content text, not long reading |
| #33759D text on black | 4.17:1 | AA large text | Lc -27.2 | 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 600.
-
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
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A9C5D9
oklch(80.9% 0.041 239.1)
-
Step 400
400
#7AA7C5
oklch(70.7% 0.065 238.1)
-
Step 500
500
#5691B7
oklch(63.2% 0.084 238.3)
-
Step 600
600 (this color)
#33759D
oklch(53.8% 0.092 238.4)
-
Step 700
700
#2B678B
oklch(49.1% 0.084 238.3)
-
Step 800
800
#255471
oklch(42.7% 0.07 238.6)
-
Step 900
900
#23465B
oklch(37.8% 0.054 236.9)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#33759D 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) | #62759F | 0.051 |
| Deuteranopia (no green cones) | #546A9C | 0.043 |
| Tritanopia (no blue cones) | #007F83 | 0.063 |
| Achromatopsia (no color) | #6F6F6F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33759D
#33759D
oklch(53.8% 0.092 238.4)
- #956034
#956034
oklch(53.8% 0.091 58.8)
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 #33759D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.014
- Dull Blue #49759C ΔE 0.020
- Flat Blue #3C73A8 ΔE 0.022
- Cerulean #457B9D ΔE 0.026
- Sea Blue #047495 ΔE 0.027
- Ocean Blue #03719C ΔE 0.027
- Nice Blue #107AB0 ΔE 0.032
- Metallic Blue #4F738E ΔE 0.033
Use #33759D 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.