#31598F
Closest named color: Light Navy Blue (#2E5A88). oklch(46.2% 0.099 256.4), rgb(49, 89, 143).
Aa
White text reads best on this color (7.10:1).
About this color
#31598F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.099 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.013 away. White text reads best on it, at 7.10:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #31598F |
| RGB | rgb(49, 89, 143) |
| HSL | hsl(214, 49%, 38%) |
| OKLCH | oklch(46.2% 0.099 256.4) |
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 #31598F | 7.10:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #31598F | 2.95:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #31598F text on white | 7.10:1 | AAA | Lc 84.4 | Fine for body text |
| #31598F text on black | 2.95:1 | Fails | Lc -17.6 | 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 700.
-
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
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ADC2E0
oklch(80.8% 0.048 257.3)
-
Step 400
400
#81A3D1
oklch(70.7% 0.078 256.1)
-
Step 500
500
#618BC4
oklch(63% 0.098 256.3)
-
Step 600
600
#4874B1
oklch(55.5% 0.107 256.8)
-
Step 700
700 (this color)
#31598F
oklch(46.2% 0.099 256.4)
-
Step 800
800
#30507B
oklch(42.8% 0.081 256.2)
-
Step 900
900
#2A4263
oklch(37.6% 0.064 256.6)
-
Step 950
950
#19273A
oklch(27% 0.041 256.3)
#31598F 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) | #415D91 | 0.023 |
| Deuteranopia (no green cones) | #34548E | 0.014 |
| Tritanopia (no blue cones) | #00656D | 0.081 |
| Achromatopsia (no color) | #585858 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31598F
#31598F
oklch(46.2% 0.099 256.4)
- #775000
#775000
oklch(46.3% 0.097 76.5)
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 #31598F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.013
- Denim Blue #3B5B92 ΔE 0.014
- Dusk Blue #26538D ΔE 0.022
- Dusky Blue #475F94 ΔE 0.033
- Denim #3B638C ΔE 0.035
- Twilight #4E518B ΔE 0.040
- Dusk #4E5481 ΔE 0.040
- Light Navy #155084 ΔE 0.041
Use #31598F 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.