#33537A
Closest named color: Light Navy Blue (#2E5A88). oklch(43.6% 0.075 254.1), rgb(51, 83, 122).
Aa
White text reads best on this color (7.89:1).
About this color
#33537A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.075 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.027 away. White text reads best on it, at 7.89:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #33537A |
| RGB | rgb(51, 83, 122) |
| HSL | hsl(213, 41%, 34%) |
| OKLCH | oklch(43.6% 0.075 254.1) |
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 #33537A | 7.89:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #33537A | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #33537A text on white | 7.89:1 | AAA | Lc 87.3 | Fine for body text |
| #33537A text on black | 2.65:1 | Fails | Lc -14.8 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#AEC3DD
oklch(81% 0.043 253.8)
-
Step 400
400
#82A3CC
oklch(70.6% 0.071 254.1)
-
Step 500
500
#638CBF
oklch(63.1% 0.09 254.4)
-
Step 600
600
#4975AB
oklch(55.5% 0.098 254.3)
-
Step 700
700
#3A6293
oklch(49% 0.091 254.4)
-
Step 800
800 (this color)
#33537A
oklch(43.6% 0.075 254.1)
-
Step 900
900
#2B4360
oklch(37.7% 0.058 253.8)
-
Step 950
950
#1A2738
oklch(26.9% 0.037 255.4)
#33537A 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) | #43557C | 0.022 |
| Deuteranopia (no green cones) | #3A4E79 | 0.016 |
| Tritanopia (no blue cones) | #005C61 | 0.066 |
| Achromatopsia (no color) | #515151 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33537A
#33537A
oklch(43.6% 0.075 254.1)
- #6A4B1C
#6A4B1C
oklch(43.7% 0.075 74.6)
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 #33537A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.030
- Light Navy #155084 ΔE 0.033
- Dusk Blue #26538D ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.033
- Dusk #4E5481 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.044
- Twilight #4E518B ΔE 0.048
Use #33537A 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.