#33537C
Closest named color: Light Navy Blue (#2E5A88). oklch(43.7% 0.078 255.2), rgb(51, 83, 124).
Aa
White text reads best on this color (7.86:1).
About this color
#33537C is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.078 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.025 away. White text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.66:1 |
| White text | 7.86:1 |
Values
| HEX | #33537C |
| RGB | rgb(51, 83, 124) |
| HSL | hsl(214, 42%, 34%) |
| OKLCH | oklch(43.7% 0.078 255.2) |
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 #33537C | 7.86:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #33537C | 2.66:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #33537C text on white | 7.86:1 | AAA | Lc 87.2 | Fine for body text |
| #33537C text on black | 2.66:1 | Fails | Lc -14.9 | Not readable |
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 800.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#82A3CE
oklch(70.7% 0.073 255.2)
-
Step 500
500
#628CC1
oklch(63.1% 0.093 254.7)
-
Step 600
600
#4975AE
oklch(55.6% 0.102 255.5)
-
Step 700
700
#3A6295
oklch(49.1% 0.094 255.2)
-
Step 800
800 (this color)
#33537C
oklch(43.7% 0.078 255.2)
-
Step 900
900
#2B4361
oklch(37.8% 0.06 254.6)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#33537C 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) | #42557E | 0.021 |
| Deuteranopia (no green cones) | #394E7B | 0.015 |
| Tritanopia (no blue cones) | #005C62 | 0.068 |
| Achromatopsia (no color) | #525252 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33537C
#33537C
oklch(43.7% 0.078 255.2)
- #6B4B19
#6B4B19
oklch(43.8% 0.078 74.8)
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 #33537C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.025
- Dusk Blue #26538D ΔE 0.030
- Light Navy #155084 ΔE 0.031
- YInMn Blue #415A77 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.032
- Dusk #4E5481 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.042
- Twilight #4E518B ΔE 0.046
Use #33537C 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.