#235173
Closest named color: Deep Sea Blue (#015482). oklch(41.9% 0.076 243.4), rgb(35, 81, 115).
Aa
White text reads best on this color (8.41:1).
About this color
#235173 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.076 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.028 away. White text reads best on it, at 8.41:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #235173 |
| RGB | rgb(35, 81, 115) |
| HSL | hsl(206, 53%, 29%) |
| OKLCH | oklch(41.9% 0.076 243.4) |
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 #235173 | 8.41:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #235173 | 2.49:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #235173 text on white | 8.41:1 | AAA | Lc 88.8 | Fine for body text |
| #235173 text on black | 2.49:1 | Fails | Lc -13.4 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C5DC
oklch(81% 0.045 243.1)
-
Step 400
400
#7AA6CA
oklch(70.7% 0.071 243.7)
-
Step 500
500
#5690BC
oklch(63.2% 0.09 242.7)
-
Step 600
600
#3A79A8
oklch(55.6% 0.098 243.5)
-
Step 700
700
#2B6691
oklch(49.2% 0.092 243.4)
-
Step 800
800 (this color)
#235173
oklch(41.9% 0.076 243.4)
-
Step 900
900
#23455F
oklch(37.7% 0.06 243.4)
-
Step 950
950
#152837
oklch(26.8% 0.038 243.7)
#235173 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) | #425275 | 0.036 |
| Deuteranopia (no green cones) | #374A72 | 0.028 |
| Tritanopia (no blue cones) | #00595D | 0.055 |
| Achromatopsia (no color) | #4D4D4D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #235173
#235173
oklch(41.9% 0.076 243.4)
- #6A431B
#6A431B
oklch(42% 0.077 63.5)
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 #235173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.028
- Light Navy #155084 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.043
- Dusk Blue #26538D ΔE 0.043
- YInMn Blue #415A77 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.046
- Petrol #005F6A ΔE 0.052
- Twilight Blue #0A437A ΔE 0.052
Use #235173 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.