#133159
Closest named color: Prussian Blue (#1D3557). oklch(31.4% 0.08 256.6), rgb(19, 49, 89).
Aa
White text reads best on this color (13.03:1).
About this color
#133159 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.080 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 13.03:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 13.03:1 |
Values
| HEX | #133159 |
| RGB | rgb(19, 49, 89) |
| HSL | hsl(214, 65%, 21%) |
| OKLCH | oklch(31.4% 0.08 256.6) |
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 #133159 | 13.03:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #133159 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #133159 text on white | 13.03:1 | AAA | Lc 99.0 | Preferred for body text |
| #133159 text on black | 1.61:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C3DBFC
oklch(88.4% 0.052 256.4)
-
Step 300
300
#99C3FE
oklch(80.9% 0.095 256.9)
-
Step 400
400
#5EA1FD
oklch(70.6% 0.152 256.8)
-
Step 500
500
#2986FB
oklch(63% 0.194 256.7)
-
Step 600
600
#006EE1
oklch(55.5% 0.194 256.7)
-
Step 700
700
#005CBF
oklch(49% 0.172 256.8)
-
Step 800
800
#004B9E
oklch(42.6% 0.15 256.7)
-
Step 900
900
#053F83
oklch(37.7% 0.127 256.7)
-
Step 950
950 (this color)
#133159
oklch(31.4% 0.08 256.6)
#133159 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) | #1E345B | 0.017 |
| Deuteranopia (no green cones) | #122E58 | 0.010 |
| Tritanopia (no blue cones) | #003A40 | 0.062 |
| Achromatopsia (no color) | #313131 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133159
#133159
oklch(31.4% 0.08 256.6)
- #442C00
#442C00
oklch(31.4% 0.066 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 #133159, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Marine #042E60 ΔE 0.020
- Marine Blue #01386A ΔE 0.034
- Midnight Green #073B4C ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.049
- Gunmetal #293241 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.059
Use #133159 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.