#1990D0

Closest named color: Water Blue (#0E87CC). oklch(62.3% 0.136 239.9), rgb(25, 144, 208).

Black text reads best on this color (5.94:1).

About this color

#1990D0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.136 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.026 away. Black text reads best on it, at 5.94:1.

Hue family	Blues
Lightness	medium-light (62%)
Chroma	moderately saturated (0.136)
Temperature	cool
Nearest name	Water Blue (#0E87CC)
Black text	5.94:1
White text	3.53:1

Values

HEX	#1990D0
RGB	rgb(25, 144, 208)
HSL	hsl(201, 79%, 46%)
OKLCH	oklch(62.3% 0.136 239.9)

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 #1990D0	3.53:1	AA large text	Lc -67.9	Content text, not long reading
Black text on #1990D0	5.94:1	AA	Lc 41.7	Non-text elements, placeholder text
#1990D0 text on white	3.53:1	AA large text	Lc 62.4	Content text, not long reading
#1990D0 text on black	5.94:1	AA	Lc -39.3	Non-text elements, placeholder text

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 500.

Step 50
50

#F0F6FB

oklch(97% 0.009 242.8)
Step 100
100

#DFECF6

oklch(93.6% 0.019 240.7)
Step 200
200

#C4DDF0

oklch(88.5% 0.037 240.7)
Step 300
300

#9AC7E8

oklch(80.9% 0.067 240.4)
Step 400
400

#5DA9DC

oklch(70.6% 0.106 240)
Step 500
500 (this color)

#1990D0

oklch(62.3% 0.136 239.9)
Step 600
600

#007BB5

oklch(55.6% 0.127 239.8)
Step 700
700

#006799

oklch(49% 0.112 240)
Step 800
800

#00557F

oklch(42.8% 0.098 239.8)
Step 900
900

#00466A

oklch(37.6% 0.086 240.1)
Step 950
950

#05293F

oklch(26.9% 0.057 240.8)

Export this scale for Tailwind in the Tailwind colors tool

#1990D0 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)	#7191D3	0.069
Deuteranopia (no green cones)	#5981CF	0.054
Tritanopia (no blue cones)	#00A0A7	0.089
Achromatopsia (no color)	#888888	0.136