#23577F
Closest named color: Light Navy Blue (#2E5A88). oklch(44.1% 0.086 244.9), rgb(35, 87, 127).
Aa
White text reads best on this color (7.66:1).
About this color
#23577F is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.086 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.020 away. White text reads best on it, at 7.66:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.74:1 |
| White text | 7.66:1 |
Values
| HEX | #23577F |
| RGB | rgb(35, 87, 127) |
| HSL | hsl(206, 57%, 32%) |
| OKLCH | oklch(44.1% 0.086 244.9) |
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 #23577F | 7.66:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #23577F | 2.74:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #23577F text on white | 7.66:1 | AAA | Lc 86.4 | Fine for body text |
| #23577F text on black | 2.74:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A6C5DF
oklch(80.9% 0.05 243.7)
-
Step 400
400
#75A6D0
oklch(70.6% 0.081 245.2)
-
Step 500
500
#4F90C3
oklch(63.2% 0.102 244.1)
-
Step 600
600
#3079B0
oklch(55.6% 0.112 244.7)
-
Step 700
700
#226597
oklch(49% 0.104 245.1)
-
Step 800
800 (this color)
#23577F
oklch(44.1% 0.086 244.9)
-
Step 900
900
#1F4563
oklch(37.8% 0.067 244.8)
-
Step 950
950
#13283A
oklch(26.9% 0.043 246.2)
#23577F 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) | #455881 | 0.038 |
| Deuteranopia (no green cones) | #384F7E | 0.029 |
| Tritanopia (no blue cones) | #006165 | 0.063 |
| Achromatopsia (no color) | #535353 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23577F
#23577F
oklch(44.1% 0.086 244.9)
- #734817
#734817
oklch(44.2% 0.086 65.2)
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 #23577F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.021
- Light Navy #155084 ΔE 0.028
- Dusk Blue #26538D ΔE 0.029
- YInMn Blue #415A77 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.042
- Denim #3B638C ΔE 0.048
- Dusk #4E5481 ΔE 0.050
Use #23577F 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.